#include <bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int n,m,cnt[N];
int main(){
	freopen("duel.in","r",stdin);
	freopen("duel.out","w",stdout);
	scanf("%d",&n);
	for(int i=1,x;i<=n;++i){
		scanf("%d",&x);
		cnt[x]++;
		m=max(m,cnt[x]);
	}
	printf("%d",m);
	fclose(stdin);
	fclose(stdout);
	return 0;
}
